Machine for reinforcing insoles



@cit. 23, 1945. H. c. PAULSEN MACHINE FOR REINFORGING INSOLES FiledMarch 7, 1944 liwenlw Ham 7 CPztuZsen Patented Oct. 23, 1945 UNHTEDSTATES oFFICE MACHINE FOR REINFORCING INSOLES Application March '7,1944, Serial No. 525,338

8 Claims.

This invention relates to machines for app yi reinforcing material toinsoles such, for example, as are used in the making of welted shoes,and particularly to machines fOr applyin a Strip of fabric such as duckor canvas tothe inner face of the rib and to the body of the insoleadjacent to the rib.

The invention is illustrated as embodied in a machine for reinforcinginsoles of the type disclosed in United States Letters Patent No.2,335,289, granted November 30, 1943, on an application of Norman E.Mariner and also in United States Letters Patent No. 2,345,627, grantedApril 4, 1944, on an application of the present applicant.

Machines of this type are already in extensive and successful commercialuse but, particularly because of war conditions, the quality of theocment which is available for application to the strip of reinforcingmaterial before the latter is laid progressively in the angle betweenthe body and the inside of the rib of the insole, in some instances atleast, has been somewhat inferior to that formerly used so that,occasionally, there has been a tendency for the cemented strip toseparate from the rib at one or more'points after the insole passes theoperating or strip applying point of themachine.

Therefore, a principal object of the present invention is to providemeans for insuring the permanency of the adhesion between the strip andthe rib.

According to this invention, such adhesion is better insured by theprovision ofmeans to engage the outer face of the rib just after or asthe insole leaves the operating point. said means acting to pressinwardly of and against the rib and thereby against the strip.

As herein illustrated, a machine of the general type of the patentsabove referred to is provided with a spring-pressed member shaped toengage at least the upper portion of the outer face of the rib at aboutthe time that the insole leaves the operating or strip applying point orthe bite of the feed rolls.

The invention will now be described in detail with the aid of theaccompanying drawing, which illustrates a preferred embodiment of theinvention, and then will be particularly pointed out in the appendedclaims.

In the drawing:

Fig. 1 is an end elevation of the parts of the machine in the generalvicinity of the operating or strip applying point and in the positionsthey occupy before an insole has been presented to the machine;

Fig. 2 is an elevation, partly in section, looking from the right sideof the machine, of the parts in the same vicinity and positions;

Fig. 3 is a plan, partly in section, of certain of the said partsshowing the rib pressing member in advanced position;

Fig. 4 is also a plan, similar to Fig. 3, but showing an insole inoperating position and with the rib pressing member in ,a somewhatretracted position;

Fig. 5 is a detail view showing said rib pressing member in operatingposition, as in Fig. 4, but viewed from the left side of the machine,the insole being shown in section; and

Fig. 6 is a detail end View of the upper feed roll and associated partsincluding a modified form of the rib pressing member and its controllingmechanism.

Referring the drawing, l0 designates the lower feed roll fixed to adriving shaft l2 supported in the frame M of the machine. It designatesthe upper feed roll fixed to its driving shaft l8 and carried in a yokeOr frame 20 pivoted to the main frame l4 so that the roll I6 is movabletoward and from roll ID to facilitate introduction of the insole betweenthe rolls, as more fully disclosed in the prior patents above referredto.

2B designates the strip applying roll, which may be freely rotatable, asdisclosed in the said Mariner patent, or power driven, as disclosed inthe said Paulsen patent. Also, to produce adequate traction on the stripor'tape S, this roll is preferably provided with teeth 28, as in thePaulsen patent, or spurs, as in the Mariner patent. A guard or plate 25covers the inner end of roll and is formed as a part of the carrier 39for the roll 26. This roll is mounted on a stud 32 in said carrier, thelatter being secured to a block 34 which, in turn, is secured to arockshaft 36 mounted in the frame M. A lever 38, also fixed to therockshaft, is connected to a treadle rod MI, as in said prior patents.The yoke 20 is normally raised to inoperative position by a spring 42and, when the treadle connected with rod 40 is depressed to turn therockshaft, the yoke Zll with the feed roll I6 is depressed throughconnections including the link 44, also as in said prior patents.

After the applying roll 26 has been moved through the turning of therockshaft 36 into operative position, the tape S is applied to theinside angle formed by the rib R and the body of the insole I, as shownin Figs. 4 and 5, being led to the operating or applying point by aguide 46, a tension device 48 and a guide 50 (Fig. 1).

To assist in guiding the insole through the machine, there is providedan outside guide 60 vertically adjustable on a block 62, the blockitself being horizontally adjustable on the block 34 and, after suchadjustment, both guide 60 and block 62 can be clamped to block 34 byscrews 65 and 66 which pass through enlarged holes in the block 62.Particularly as shown in Fig. 6, the guide 60 has a curved facecorresponding to the face of roll is and substantially in contacttherewith and it can be adjusted with respect to the feed roll 16 so asproperly to engage the outer face of the rib and, if desired, thefeather of the insole.

According to the present invention, the machine is further provided witha rib presser member which, in the form shown particularly in Figs. 3and 4, comprises a lever 68 pivoted to the block 62 at and shaped at itsfree end, as shown in Fig. 5, with an angular surface 12 which engagesthe upper portion of the outside faceof the'rib R. An adjusting screw16, threaded through the opposite end of lever '58, is acted upon by atension spring 18 to exert pressure on the outside of the rib just afterthe insole leaves the bite of the feed rolls. The extent of movement ofthe free end of the lever inwardly relatively to the edge of the insoleis limited by the engagement of screw 16 with the shank of the guide 60;The two extreme positions of the free end and surface 12 of this memberunder the action of spring 18 are indicated respectively in Figs. 3 and4. Thus the member 68 presses the rib R inwardly against the upturnedmargin of the reinforcing strip S and causes better adhesion between therib and the adhesive face of the strip. Preferably, although notnecessarily, the surface 12 of the presser member slightly overlaps theperiphery of roll 28 and the guard 29, when the parts are inoperatingposition, as shown in Fig. "4. C

In the actual use of the machine, as so far described, it has been foundthat, occasionally, a portion of lever 68 between the pivot 10 and thescrew [6 is accidentally hit by the insole as it is being fed and swungduring the operation on the shank portion of the insole. Any suchinterference is avoided by the use of the modified construction shown inFig. 6 in which the said portion of said lever is eliminated. As thereshown, the'lever or arm 68 is fixed to pivot stud 10 mounted in block62. To the upper end of this stud is adjustably clamped by a screw 82the hubof an arm site which is connected a tension spring 18',functioning in the manner of spring I8, and holding the lever against asurface at the end of block 34 to limit the movement of surface 12toward the applying roll 26. The initial position of the free end oflever 68' and surface 12 with relation to roll 26 may be variedv byloosening screw 82, turning stud H! with lever 68' slightly to thedesired position and then tightening screw 82 again.

Having thus indicated the object and nature of the invention and havingdescribed in detail one embodiment thereoiwhat I claim-as new and desireto secure by Letters Patent of the operating to apply a strip ofmaterial progressively to the body of the insole and to the inner faceof the rib, a relatively stationary plate or guard between said feedrolls to engage the marginal portion of the strip at the inner face ofthe rib, an adjustable guide to engage the outer face of the rib and thefeather of the insole as the insole approaches the applying point, apivoted presser member the free end of which is shaped to engage theupper portion of the outer face of the rib and overlap the applying rolljust after the insole leaves the bite of the feed rolls, and a springexerting pressure on said member inwardly of the rib to cause betteradhesion between the inner face of the rib and the strip of material.

2. In a machine for applying a strip of cemented reinforcing material toa ribbed insole, the combination of a pair of continuously driven rollsfor supporting and feeding the insole, a strip applying roll, a pivotedcarrier for said applying roll movable to carry the roll in aninclined'path toward and from said feed rolls and operating to apply astrip of material progressively to the body of the insole and to theinner face of the rib, a pivoted presser member the free end of which isshaped to engage the upper portion of the outer face of the riband,overlap the applying roll as the insole leaves the applying point, and aspring exerting pressure on said member inwardly of the rib to causebetter adhesion between the in ner face of the rib and the strip ofmaterial.

3. In a machine for applying a strip of cemented reinforcing material toa ribbed insole, the combination of a pair of driven rolls forsupporting and feeding the insole, an applying roll movable toward andfrom said feed rolls and operating to apply a strip of materialprogressively to the body of the insole and to the inner face of therib, a movable presser member one end of which is shaped to engage theupper portion 'of the outer face of the rib and overlap the applyingroll as the insole leaves the applying point, and a spring exertingpressure on said member in wardly of the rib.

4. In a machine for applying a strip of cemented reinforcing material toa ribbed insole, the combination of a pair of driven rolls forsupporting and feeding the insole, an applying roll movable toward andfrom said feed rolls and operating to apply a strip of materialprogressivelyto the body of the insole and to the inner face of the rib,a movable presser member shaped to engage the upper portion of the outerface of the rib after the insole leaves the bite of the feed rolls, anda spring to cause said member to press inwardly against the rib.

5. In a machine for applying a strip of reinforcing material to a ribbedinsole, the combines.

tion of means for supporting and feeding the insole, a roll for applyinga strip of material progressively to the body of the insole and to theinner face of the rib, and a spring pressed member engagingthe outerface of the rib after the gaging the outer face of the rib after theinsole leaves the applying point and exerting an inward pressure againstthe rib.

7. In a machine for' reinforcing "ribbed insoles, the combination ofrolls for supporting and'feeding the insole and another roll forapplying a strip of material progressively to the rib of the insole, amember to engage the outer face of the rib as the insole leaves theapplying point, and means for adjusting the engaging portion of saidmember initially relatively to said rolls.

8. In a machine for reinforcing ribbed insoles, the combination of rollsfor supporting and feeding the insole and another roll for applying astrip of material progressively to the rib of the insole, a member toengage the outer face of the rib as the insole leaves the applyingpoint, and means for adjusting the engaging end of said memberin aplurality of directions relatively to said rolls.

HANS C. RAULSEN.

